Abstract:

With the rapid development of information netization, image interaction in the Internet is widely applied in many fields. People pay much attention to the security of image interaction. We illustrate the encryption principles, characteristics and new development of the important image encryption algorithms, such as those based on matrix transformation, chaos, image secret sharing, frequency domains, SCAN languages, and DNA computing. Finally, the development trend of image encryption algorithm is discussed in this paper. This study is significant in algorithm improvement, new algorithm design and algorithm selection in the practice of image encryption.

Key words: image encryption;algorithm evaluation;DNA computing;cryptosystem